CN100387886C - Reinforced thermoplastic plastic pipe and its production method - Google Patents
Reinforced thermoplastic plastic pipe and its production method Download PDFInfo
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- CN100387886C CN100387886C CNB2006100880350A CN200610088035A CN100387886C CN 100387886 C CN100387886 C CN 100387886C CN B2006100880350 A CNB2006100880350 A CN B2006100880350A CN 200610088035 A CN200610088035 A CN 200610088035A CN 100387886 C CN100387886 C CN 100387886C
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Abstract
The present invention relates to a reinforced thermoplastic plastic pipe and a production method thereof, wherein the reinforced thermoplastic plastic pipe has three layers of structures, an inner layer (1) is a nanophase material modification high-density polyethylene pipe; a middle layer (2) is a compound polyester fibre layer coated and stuck at the surface of the inner layer (1); an outer layer (3) is a nanophase material modification high-density polyethylene layer which is pressed and combined at the surface of the compound polyester fiber layer of the middle layer (2), and the three layers are compounded into an integral body. The compound polyester is compound polyester materials generated by the fasculation of the nanophase materials and polyester raw materials. The production method of the reinforced thermoplastic plastic pipe has the following steps: making nanophase material modification high-density polyethylene agglomerates; pressing the inner layer (1); winding the compound polyester fibre layer of the middle layer (2); forming by heat and sticking the compound polyester fibre layer of the middle layer (2); pressing and combining the outer layer (3). The reinforced thermoplastic plastic pipe of the present invention has the advantages of reasonable performance price ratio, simple production method, low energy consumption and convenient generalization.
Description
Technical field
The present invention relates to a kind of reinforced thermoplastics tubing and production method thereof.
Background technique
Reinforced plastic tubing has two big classes, and the first kind is a reinforced thermosetting plastics tubing, promptly common alleged frp pipe; Second class is a reinforced thermoplastics tubing.The disadvantage of frp pipe is to coil, and therefore, lays and transport all very inconvenient.At present, reinforced thermoplastics tubing mainly is to use Steel Skeleton, hole pattern slab skeleton or steel wire twine, to thermoplastic plastic pipe (for example, polyethylene or polypropylene plastics tubing) strengthen, but, the plastic tube of Zeng Qianging like this, owing to have bigger and uneven internal stress between steel and the plastics, strengthen DeGrain, but also have the connection of tube and tube, butt joint, problems such as end-blocking, simultaneously, because traditional hdpe pipe inner wall surface is crude, very easily cause to be transferred material fouling and constantly thickening, and then stop up, become the main cause that finally causes pipe to be scrapped.Pipe regeneration after scrapping is poor, also can impact environment.A kind of reinforced thermoplastics tubing is arranged at present, and it is with the reinforcing material of fiber as thermoplastic plastic pipe.These fibers are synthetic fiber, glass fibre, carbon fiber or aramid fibre, and wherein, what the enhancing effect was best is aramid fibre.But the price of this fiber is tens of times of plastics, therefore, is difficult to promote in developing country.
Summary of the invention
First purpose of the present invention is: provide a kind of performance and price than rational reinforced thermoplastics tubing, its price is lower than the reinforced thermoplastics tubing of making reinforcing material with aramid fiber or carbon fiber, and impact resistance, barotolerance are suitable; Tube wall good antiscale property performance is better than pure polyvinyl piping materials, has also kept the flexibility of pure polyvinyl piping materials simultaneously, can do to grow up to coil and manage transportation and use.
Second purpose of the present invention is: a kind of method of producing above-mentioned reinforced thermoplastics tubing is provided, and this method method is simple, and energy consumption is low, is convenient to promote.
The technological scheme that realizes first purpose of the present invention is: a kind of reinforced thermoplastics tubing, and it has three-decker, is characterized in, and internal layer is nano-material modified hdpe pipe; The middle level is the composite polyester fiber layer that coats and be bonded in the internal layer surface; Skin is nano-material modified high-density polyethylene layer, and its extruding is combined in middle level composite polyester fiber laminar surface, above-mentioned three layers compound be one; Described complex polyester is the composite polyester material that generates with the polyester raw material polycondensation with nanometer material.
Above-mentioned reinforced thermoplastics tubing, described middle level composite polyester fiber layer is the positive and negative intersection winding layer or the spiral winding layer of the high strength that is processed into of composite polyester material, high-modulus, low complex polyester monofilament, rope, band or the fabric that shrinks, and its winding layer number of plies is one or more layers.
Above-mentioned reinforced thermoplastics tubing, described nano-material modified high density polyethylene (HDPE), it contains high-density polyethylene resin, nanometer material, antioxidant, paraffin and ultraviolet protecting agent or anti-static agent.
Above-mentioned reinforced thermoplastics tubing, described nanometer material are one or more in nano level calcium carbonate, silica or the zine oxide.
The technological scheme that realizes second purpose of the present invention is: a kind of production method of above-mentioned reinforced thermoplastics tubing has the following steps:
1. in proportion with nanometer material, antioxidant, paraffin and high-density polyethylene resin, disperse through being equipped with ultraviolet emission device or microwave launcher and the moving dry runner of not stopping transport simultaneously, then, enter tablet machine and make master batch, this moment, the paraffin of super fatting agent effect volatilized fully;
2. in extruder, the master batch that 1. step is made, anti-static agent and high-density polyethylene resin are squeezed into tubing together in proportion, are internal layer;
3. with complex polyester monofilament, rope, band or fabric, on the internal layer surface, positive and negative intersection is twined or spiral twines one or more layers with Stetch Wrapping Machine, forms middle level composite polyester fiber layer;
4. to middle level composite polyester fiber laminar surface heat setting, then, coated with adhesive is with middle level composite polyester fiber layer, and is fixing with internal layer surface bonding;
5. the tubing that is adhesively fixed with middle level composite polyester fiber layer that 4. makes by step, during once more by extruder, the master batch that 1. step is made, ultraviolet protecting agent, high-density polyethylene resin push the surface that is combined in middle level composite polyester fiber layer together in proportion, form outerly, obtain having internal layer after the cooling, middle level and outer three-decker and compoundly be the reinforced thermoplastics tubing of one.
The production method of above-mentioned reinforced thermoplastics tubing, described nanometer material are one or more in nano level calcium carbonate, silica or the zine oxide.
The weight ratio that 1. production method of above-mentioned reinforced thermoplastics tubing, its step prepare the used nanometer material of master batch, antioxidant, paraffin and high-density polyethylene resin is 20: 1.5: 5.0: 78.5.
The weight ratio that 2. production method of above-mentioned reinforced thermoplastics tubing, its step form the used master batch of internal layer, anti-static agent, high-density polyethylene resin is 6: 2: 92.
The weight ratio that 5. production method of above-mentioned reinforced thermoplastics tubing, its step form the used master batch of skin, ultraviolet protecting agent, high-density polyethylene resin is 6: 2: 92.
Good effect of the present invention is: (1) reinforced thermoplastics tubing of the present invention, its internal layer is nano-material modified hdpe pipe.Because the existence of nanometer material, not only make crushing resistance, modulus and the impact resistance of internal layer tubing, improved 30%, 30% and 80% respectively than pure hdpe pipe, and the internal layer tube surfaces is more smooth, transporting resistance reduces, the material that is transferred is difficult at tube wall incrustation, and prolong the working life of tubing; Constituting the complex polyester of middle level composite polyester fiber layer, is the composite polyester material that generates with the polyester raw material polycondensation with nanometer material.Because nanometer material has participated in polycondensation reaction, the performance of gained complex polyester molecule is improved, compares with pure polyester molecule, the degree of crystallinity of complex polyester molecule and the degree of orientation improve, intermolecular active force strengthens, and has fundamentally overcome the shortcoming of pure polyester material.Therefore, with the fiber that this complex polyester makes, compare with pure polyester fibre, its intensity improves 30%, and percent thermal shrinkage＜5% is to the enhancing effect raising of thermoplastic plastic pipe; Skin is nano-material modified high-density polyethylene layer, wherein the modifying function of nanometer material has improved outer field intensity, and because outer the extruding with the composite polyester fiber layer combines, this extrusion modling typing has further improved middle level composite polyester fiber layer strength and stiffness again.Therefore, reinforced thermoplastics tubing of the present invention, its working pressure reaches 6～14Mpa, bursting pressure reaches 40Mpa, with being on close level of the thermoplastic plastic pipe of strengthening with expensive aramid fibre, its price performance is easier to be accepted by market, has also kept the flexibility of pure polyvinyl piping materials simultaneously, can do to grow up to coil and manage transportation and use.(2) method of preparation above-mentioned reinforced thermoplastics tubing of the present invention, following advantage is arranged: nanometer material, antioxidant, paraffin and high-density polyethylene resin, through the dry runner that is equipped with ultraviolet emission device or microwave launcher and do not stop transport moving the time, because the mechanism of ultraviolet ray or microwave irradiation effect and the moving dry runner of not stopping transport, make nanometer material reach the effect of disperseing preferably with lower energy consumption, solved difficult dispersion of present nanometer material and the high problem of energy consumption, thereby guaranteed that nanometer material is to improving the crushing resistance of tubing, the effect of modulus and impact resistance is not fully exerted; Middle level composite polyester fiber laminar surface heat setting is beneficial to its strength and stiffness of raising; Middle level composite polyester fiber layer is bonded in the internal layer surface, guarantees the tightness of the middle level composite polyester fiber layer that twines with Stetch Wrapping Machine, can not change when extruding is outer, thereby guarantee the reinforing function of middle level composite polyester fiber layer to tubing; Skin passes through extrusion press, extruding is combined in middle level composite polyester fiber laminar surface, not only guaranteed the fastness that combines outer and middle level composite polyester fiber layer, and this extruding combination, the moulding styling that middle level composite polyester fiber layer is played, add the heat setting that bonding middle level composite polyester fiber layer carries out it before, make middle level composite polyester fiber layer improve 20% strength and stiffness.This method is simple, can carry out on production line, is convenient to large-scale production.
Description of drawings
Fig. 1 is the schematic perspective view of reinforced thermoplastics pipe structure of the present invention;
Fig. 2 is the generalized section of reinforced thermoplastics pipe structure of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described specifically, but is not limited to this.
As depicted in figs. 1 and 2, a kind of reinforced thermoplastics tubing, it has three-decker, is characterized in, and internal layer 1 is nano-material modified hdpe pipe; Middle level 2 is the composite polyester fiber layers that coat and be bonded in internal layer 1 surface; Outer 3 is nano-material modified high-density polyethylene layer, and its extruding is combined in middle level 2 composite polyester fiber laminar surfaces, above-mentioned three layers compound be one; Described complex polyester is the composite polyester material that generates with the polyester raw material polycondensation with nanometer material.
Be described specifically with the production method of specific embodiment below reinforced thermoplastics tubing, but not limited.
(1) raw material:
High-density polyethylene resin is HDPE100, or the high-density polyethylene resin approximate with the HDPE100 performance;
The particle diameter of nanometer material calcium carbonate, silica or zine oxide is 10～80nm;
Antioxidant is the pentaerythritol esters alcohol ester; The ultraviolet ray resistant photo etching is UV absorbers or nano silicon oxide ultraviolet reflection materials such as MB218; Anti-static agent is nanometer cupric oxide, graphite, carbon black, metal powder or steel fiber; Paraffin is liquefied petrolatum or other lubriation materials;
Bond is the polyurethanes Bond;
Above raw material is commercially available industrial goods.
Complex polyester is the product that Changzhou Zhaolong Synthetic Materials Co., Ltd. produces, and this product is the nano silicon with particle diameter 10nm, with the composite polyester material of terephthalic acid, ethylene glycol polycondensation generation.
Make section earlier with above-mentioned composite polyester material, make the complex polyester monofilament with flat film drawbench high drafting then; Or again single twisting is made rope, or again monofilament or rope are made band, or again monofilament is made into fabric;
The dawn gram intensity of above-mentioned complex polyester monofilament is 8～10kg; Dry-hot shrinkage is 3.8～4.6%.
(2) equipment:
Tablet machine is the blue sky double screw extruder; Extruder is a SJ series screw extruder; Ultraviolet emission device is the artificial accelerators of nonmetallic material; Microwave launcher is the multitube microwave tunnel; Stetch Wrapping Machine is the elastic cable paper Stetch Wrapping Machine;
Embodiment 1
The step of reinforced thermoplastics tubing production method is as follows:
1. by weight 20: 1.5: 5.0: 78.5, with nanometer material (calcium carbonate of particle diameter 10～80nm), antioxidant (pentaerythritol ester), paraffin (liquefied petrolatum) and high-density polyethylene resin (HDPE100), simultaneously through being equipped with ultraviolet emission device (the artificial accelerator of nonmetallic material) and the moving dry runner of not stopping transport disperses, then, enter the blue sky double screw extruder and make master batch, this moment, the paraffin of super fatting agent effect volatilized fully;
2. in SJ series screw extruder, by weight 6: 2: 92, master batch, anti-static agent (nanometer cupric oxide) and high-density polyethylene resin (HDPE100) with 1. step makes were squeezed into tubing together, are internal layer 1;
3. with the complex polyester monofilament, on the internal layer surface, positive and negative intersection is twined two-layer with Stetch Wrapping Machine, forms middle level 2 composite polyester fiber layers;
4. the 2 composite polyester fiber laminar surface heat settings in the middle level, then, coated with adhesive is with middle level 2 composite polyester fiber layers, and is fixing with internal layer 1 surface bonding;
3. the tubing that is adhesively fixed with middle level 2 composite polyester fiber layers that 4. makes by step, during once more by SJ series screw extruder, by weight 6: 2: 92, master batch, ultraviolet protecting agent (MB218), high-density polyethylene resin (HDPE100) that 1. step is made push the surface that is combined in middle level 2 composite polyester fiber layers together, form outerly 3, obtain having internal layer 1 after the cooling, middle level 2 and outer 3 three-deckers and compoundly be the reinforced thermoplastics tubing of one.
The step of reinforced thermoplastics tubing production method is as follows:
Substantially the same manner as Example 1, its difference is: step nanometer material is 1. used the silica of particle diameter 10～80nm instead; Adopt microwave launcher (multitube microwave tunnel) to replace ultraviolet emission device; Step anti-static agent is 2. used metal powder instead; 3. step carries out by the following method: with the rope that the complex polyester single twisting is made, on internal layer 1 surface, spiral twines three layers with Stetch Wrapping Machine, forms middle level 2 composite polyester fiber layers.
The step of reinforced thermoplastics tubing production method is as follows:
Substantially the same manner as Example 1, its difference is: step nanometer material is 1. used the zine oxide of particle diameter 10～80nm instead; Step anti-static agent is 2. used graphite instead; 3. step carries out by the following method: with the band that the complex polyester monofilament is made, on internal layer 1 surface, positive and negative intersection is twined two-layer with Stetch Wrapping Machine, forms middle level 2 composite polyester fiber layers; Step ultraviolet protecting agent is 5. used nano silicon oxide ultraviolet reflection material instead.
Embodiment 4
The step of reinforced thermoplastics tubing production method is as follows:
Substantially the same manner as Example 1, its difference is: step nanometer material is 1. used 1: 1 (weight ratio) mixture of the calcium carbonate of the zine oxide of particle diameter 10～80nm and particle diameter 10～80nm instead; Adopt microwave launcher (multitube microwave tunnel) to replace ultraviolet emission device; 3. step carries out by the following method: with the cloth that the complex polyester monofilament is made, on internal layer 1 surface, spiral twines five layers with Stetch Wrapping Machine, forms middle level 2 composite polyester fiber layers.
The reinforced thermoplastics pipe performance that adopts the inventive method to make is as follows:
| Performance | Embodiment 1～4 | External product |
| Inner layer material | Nano-material modified high density polyethylene (HDPE) (containing anti-static agent) | High density polyethylene (HDPE) |
| Middle layer material | Composite polyester fiber | Aramid fibre |
| Cladding material | Nano-material modified high density polyethylene (HDPE) (containing ultraviolet protecting agent) | High density polyethylene (HDPE) |
| The tube wall external diameter, mm | 50～400 | - |
| Pipe thickness, mm | 13～14 | - |
| Working pressure, MPa | 6～14 | 9～14 |
| Bursting pressure, MPa | 40 | 40 |
| Operating temperature, ℃ | 80 | 60 |
| Every pipe crimping material length, m | 280～400 | - |
As can be seen from the above table, reinforced thermoplastics pipe performance and external product that the inventive method makes are suitable, every pipe crimping material length still can reach the level of pure hdpe pipe, and the price of the used composite polyester fiber in middle level is 1.7 ten thousand yuan/ton, far below the price (20～300,000 yuan/ton) of aramid fibre.Therefore, reinforced thermoplastics tubing of the present invention has vast market.
Claims (6)
1. reinforced thermoplastics tubing, it has three-decker, it is characterized in that: internal layer (1) is nano-material modified hdpe pipe; Middle level (2) is the composite polyester fiber layer that coats and be bonded in internal layer (1) surface; Outer (3) are nano-material modified high-density polyethylene layer, and its extruding is combined in middle level (2) composite polyester fiber laminar surface, above-mentioned three layers compound be one; Described complex polyester is a kind of material that generates with the polyester raw material polycondensation with nanometer material.
2. reinforced thermoplastics tubing according to claim 1, it is characterized in that: described middle level (2) composite polyester fiber layer is the positive and negative intersection winding layer or the spiral winding layer of the cloth made of complex polyester monofilament, rope, band or complex polyester monofilament that complex polyester is processed into, and its winding layer number of plies is one or more layers.
3. reinforced thermoplastics tubing according to claim 1 is characterized in that: described nano-material modified hdpe pipe, and it contains high-density polyethylene resin, nanometer material, antioxidant and anti-static agent; Described nano-material modified high-density polyethylene layer, it contains high-density polyethylene resin, nanometer material, antioxidant and ultraviolet protecting agent.
4. according to claim 1 or 3 described reinforced thermoplastics tubing, it is characterized in that: the nanometer material of described nano-material modified hdpe pipe and nano-material modified high-density polyethylene layer is one or more in nano level calcium carbonate, silica or the zine oxide.
5. the production method of the described reinforced thermoplastics tubing of claim 1 is characterized in that: have the following steps:
1. by weight 20: 1.5: 5.0: 78.5 with nanometer material, antioxidant, paraffin and high-density polyethylene resin, disperse through being equipped with ultraviolet emission device or microwave launcher and the moving dry runner of not stopping transport simultaneously, then, enter tablet machine and make master batch, this moment, the paraffin of super fatting agent effect volatilized fully;
2. in extruder, master batch, anti-static agent, high-density polyethylene resin by weight 1. step being made in 6: 2: 92 are squeezed into tubing together, are internal layer (1);
3. the cloth that complex polyester monofilament, rope, band or complex polyester monofilament are made uses Stetch Wrapping Machine on internal layer (1) surface, and positive and negative intersection is twined or spiral twines one or more layers, forms middle level (2) composite polyester fiber layer;
4. to middle level (2) composite polyester fiber laminar surface heat setting, then, coated with adhesive is fixing with middle level (2) composite polyester fiber layer and internal layer (1) surface bonding;
5. the tubing that is adhesively fixed with middle level (2) composite polyester fiber layer that 4. makes by step, during once more by extruder, push the surface that is combined in middle level (2) composite polyester fiber layer together by weight the master batch, ultraviolet protecting agent, the high-density polyethylene resin that 1. step were made in 6: 2: 92, form outer (3), obtain after the cooling having that internal layer (1), middle level (2) and outer (3) three-decker are also compound is the reinforced thermoplastics tubing of one.
6. the production method of reinforced thermoplastics tubing according to claim 5 is characterized in that: the 1. described nanometer material of step is one or more in nano level calcium carbonate, silica or the zine oxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100880350A CN100387886C (en) | 2006-06-14 | 2006-06-14 | Reinforced thermoplastic plastic pipe and its production method |
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| CNB2006100880350A CN100387886C (en) | 2006-06-14 | 2006-06-14 | Reinforced thermoplastic plastic pipe and its production method |
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| CN100387886C true CN100387886C (en) | 2008-05-14 |
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| CN102913691A (en) * | 2011-08-03 | 2013-02-06 | 上海杰事杰新材料(集团)股份有限公司 | Reinforced composite pipe and manufacturing method thereof |
| CN102786729B (en) * | 2012-08-01 | 2014-08-27 | 杨电云 | PE160 grade composite material for pipes and preparation method of composite material |
| CN102848666A (en) * | 2012-08-31 | 2013-01-02 | 苏州博云塑业有限公司 | Nanometer reinforced plastic and preparation process thereof |
| CN103542189A (en) * | 2013-11-06 | 2014-01-29 | 江苏奇一科技有限公司 | Continuous fiber reinforced thermoplastic compound pipeline for oil-gas pipe network and production process of pipeline |
| CN111059366A (en) * | 2018-10-16 | 2020-04-24 | 湖南易净环保科技有限公司 | Continuous fiber reinforced thermoplastic pipeline and production method thereof |
| CN112576822B (en) * | 2020-12-03 | 2024-02-02 | 江阴标榜汽车部件股份有限公司 | Multilayer composite pipe for new energy automobile thermal management system and preparation process thereof |
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| JPH05293916A (en) * | 1992-04-21 | 1993-11-09 | Ube Ind Ltd | Multilayer fuel tube for automobile |
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